Regulations Detail Sheet 1

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1 Electronic Copy Polypipe Building Products Ltd Broomhouse Lane Edlington Doncaster South Yorkshire DN12 1ES Tel: Fax: CI/SfB (52) In6 Agrément Certificate No 02/3923 Designated by Government to issue European Technical Approvals POLYSEWER GRAVITY SEWER SYSTEM Système d égouts Kanalisationssystem Product THIS CERTIFICATE RELATES TO THE POLYSEWER 150 mm, 225 mm AND 300 mm PVC-U UNDERGROUND AND GRAVITY SEWERAGE SYSTEM, THE COMPONENTS OF WHICH ARE REFERRED TO IN THE ACCOMPANYING DETAIL SHEETS. The system is for use in domestic drains and public and private sewers in accordance with WIS : The system meets the relevant conditions and standards given in Water UK/WRc plc document Sewers for Adoption, July 2001, 5th edition. Regulations Detail Sheet 1 1 The Building Regulations 2000 (as amended) (England and Wales) The Secretary of State has agreed with the British Board of Agrément the aspects of performance to be used by the BBA in assessing the compliance of drainage systems with the Building Regulations. In the opinion of the BBA, the Polysewer Gravity Sewer System, if used in accordance with the provisions of this Certificate, will meet or contribute to meeting the relevant requirements. Requirement: H1(1) Foul water drainage The Polysewer Gravity Sewer System will convey the flow of foul or surface water and minimise the risk of blockages or leaks. See sections 6.1 and 6.2 of the relevant Detail Sheets. Requirement: H3 Rainwater drainage The Polysewer Gravity Sewer System will convey the flow of rainwater and minimise the risk of blockages or leaks. See sections 6.1 and 6.2 of the relevant Detail Sheets. Requirement: Regulation 7 Materials and workmanship The system is acceptable. continued Readers are advised to check the validity of this Certificate by either referring to the BBA s website ( or contacting the BBA direct (Telephone Hotline ).

2 continued Components of the system can be used individually or in combination as described in the Detail Sheets. This Certificate does not cover the use of the products for untreated trade effluents. These Front Sheets must be read in conjunction with the accompanying Detail Sheets, which provide information for specific systems. Electronic Copy 2 The Building Standards (Scotland) Regulations 1990 (as amended) In the opinion of the BBA, the Polysewer Gravity Sewer System, if used in accordance with the provisions of this Certificate, will satisfy or contribute to satisfying the various Building Regulations and related Technical Standards as listed below. Regulation: 10 Fitness of materials Standard: B2.1 Selection and use of materials, and components The system is acceptable. Regulation: 24 Drainage and sanitary facilities Standard: M2.1 Drainage system of a building The system can meet the relevant requirements of this Standard. See sections 6.1 and 6.2 of the relevant Detail Sheets. 3 The Building Regulations (Northern Ireland) 2000 In the opinion of the BBA, the Polysewer Gravity Sewer System, if used in accordance with the provisions of this Certificate, will satisfy or contribute to satisfying the various Building Regulations as listed below. Regulation: B2 Fitness of materials and workmanship The system is acceptable. Regulation: N4 Underground foul drainage See sections 6.1 and 6.2 of the relevant Detail Sheets. Regulation: N5 Rain-water drainage See sections 6.1 and 6.2 of the relevant Detail Sheets. 4 Construction (Design and Management) Regulations 1994 (as amended) Construction (Design and Management) Regulations (Northern Ireland) 1995 (as amended) Information in this Certificate may assist the client, planning supervisor, designer and contractors to address their obligations under these Regulations. See sections: 2 Delivery and site handling, 3 General and 12 General of the relevant Detail Sheet. 2

3 Conditions of Certification 5 Conditions 5.1 This Certificate: (a) relates only to the product that is described, installed, used and maintained as set out in this Certificate; (b) is granted only to the company, firm or person identified on the front cover no other company, firm or person may hold or claim any entitlement to this Certificate; (c) has to be read, considered and used as a whole document it may be misleading and will be incomplete to be selective; (d) is copyright of the BBA. 5.2 References in this Certificate to any Act of Parliament, Regulation made thereunder, Directive or Regulation of the European Union, Statutory Instrument, Code of Practice, British Standard, manufacturers instructions or similar publication, shall be construed as references to such publication in the form in which it was current at the date of this Certificate. 5.3 This Certificate will remain valid for an unlimited period provided that the product and the manufacture and/or fabricating process(es) thereof: (a) are maintained at or above the levels which have been assessed and found to be satisfactory by the BBA; Electronic Copy (b) continue to be checked by the BBA or its agents; and (c) are reviewed by the BBA as and when it considers appropriate. 5.4 In granting this Certificate, the BBA makes no representation as to: (a) the presence or absence of any patent or similar rights subsisting in the product or any other product; (b) the right of the Certificate holder to market, supply, install or maintain the product; and (c) the nature of individual installations of the product, including methods and workmanship. 5.5 Any recommendations relating to the use or installation of this product which are contained or referred to in this Certificate are the minimum standards required to be met when the product is used. They do not purport in any way to restate the requirements of the Health & Safety at Work etc Act 1974, or of any other statutory, common law or other duty which may exist at the date of this Certificate or in the future; nor is conformity with such recommendations to be taken as satisfying the requirements of the 1974 Act or of any present or future statutory, common law or other duty of care. In granting this Certificate, the BBA does not accept responsibility to any person or body for any loss or damage, including personal injury, arising as a direct or indirect result of the installation and use of this product. In the opinion of the British Board of Agrément, the Polysewer Gravity Sewer System is fit for its intended use provided it is installed, used and maintained as set out in this Certificate. Certificate No 02/3923 is accordingly awarded to Polypipe Building Products Ltd. On behalf of the British Board of Agrément Date of issue: 3rd May 2002 Chief Executive 3

4 Electronic Copy British Board of Agrément P O Box No 195, Bucknalls Lane Garston, Watford, Herts WD25 9BA Fax: mail@bba.star.co.uk website: For technical or additional information, tel: For information about Agrément Certificate validity and scope, tel: Hotline:

5 Electronic Copy CI/SfB (52) Iq2 BSI Kitemarked Components Polypipe Building Products Ltd Certificate No 02/3923 DETAIL SHEET 2 POLYSEWER GRAVITY SEWER SYSTEM THIS DETAIL SHEET LISTS THE COMPONENTS IN THE POLYSEWER 150 mm, 225 mm AND 300 mm GRAVITY SYSTEM THAT ARE CURRENTLY COVERED BY THE BSI KITEMARK CERTIFICATION SCHEME WIS Specification for thermoplastic structured wall pipes, joints and couplers with a smooth bore for gavity sewers for the range 150 to 900 inclusive. BSI Kitemark Licence No KM issued to: Polypipe Ulster Ltd Dromore Road Lurgan Craigavon Co Armagh BT66 7HL Kitemark certified Product code pipe and fittings to WIS mm 225 mm 300 mm 6 m plain ended pipe PS 660 PS 1060 PS m plain ended pipe PS 630 PS 1030 PS m socketed PS 662 PS 1062 PS m socketed PS 632 PS 1032 PS 1232 Pipe couplers PS 601 PS 1001 PS 1201 Slip couplers PS 600 PS 1000 PS 1200 Readers are advised to check the validity of this Detail Sheet by either referring to the BBA s website ( or contacting the BBA direct (Telephone Hotline ).

6 Electronic Copy On behalf of the British Board of Agrément Date of issue: 3rd May 2002 Chief Executive British Board of Agrément P O Box No 195, Bucknalls Lane Garston, Watford, Herts WD25 9BA Fax: mail@bba.star.co.uk website: For technical or additional information, tel: For information about Agrément Certificate validity and scope, tel: Hotline:

7 Electronic Copy CI/SfB (52) In6 Polypipe Building Products Ltd POLYSEWER 150 mm, 225 mm AND 300 mm FITTINGS Certificate No 02/3923 DETAIL SHEET 3 Product THIS DETAIL SHEET RELATES TO THE POLYPIPE POLYSEWER 150 mm, 225 mm AND 300 mm FITTINGS. The Polysewer fittings are for use in domestic drains and public and private sewers at depths of up to 10 metres. This Detail Sheet must be read in conjunction with the Front Sheets, which give the Conditions of Certification and the product s position regarding the Building Regulations. Technical Specification 1 Description 1.1 Polysewer fittings, where applicable, are all socketed and are either injection moulded in PVC-U or polypropylene, or thermoformed from PVC-U extruded pipe. The rodding eye is cast from aluminium. Where appropriate, the body of the fitting is ribbed (see Figure 1). The sockets of each fitting are not ribbed and have the same depth as that of pipe sockets of the corresponding diameter. The range of fittings covered by this Detail Sheet is shown in Figure 1. Rubber sealing rings are injection moulded from EPDM rubber and conform to type WC as referred to in BS EN : Continuous quality control is exercised during manufacture to maintain product quality and includes checks for dimensional accuracy and stress relief on the fittings. 1.3 Each fitting is embossed or labelled with the product name and code, the internal diameter and angle of bend/branch and the BBA identification mark incorporating the number of this Certificate. 2 Delivery and site handling 2.1 Handling, storage and transportation should be in accordance with BS : When long-term storage is envisaged, the pipe, fittings and adaptors must be protected from direct sunlight. Readers are advised to check the validity of this Detail Sheet by either referring to the BBA s website ( or contacting the BBA direct (Telephone Hotline ).

8 Figure 1 Polysewer fittings (all measurements in mm) Electronic Copy Double socket bends 15, 30, 45 and 90 (1) 150 x x x x x x x x x x x x 90 Triple socket equal junctions 45 and 87½ (1) 45 87½ Triple socket unequal junctions 45 and 87½ (1) 45 87½ 150 x 110 (2) 150 x 110 (2) 225 x 110 (2) 225 x x 160 (2) 300 x 110 (2) 300 x x 160 (2) 300 x x 160 Single socket adaptor to clay socket (1) 225 (2 spigot) 300 (1 spigot) Double socket adaptor (to BS EN : 1998 pipe) (1) Single socket adaptor (to BS EN : 1998 socket) (1) End cap Socket plugs Rodding eye Seals (aluminium) Reducers (1) 225 x x 225 Double socket adaptors to UltraRib pipe Double socket adaptor to clayware pipe (1) 150 to super clayware pipe 150 to thick clayware pipe Snap cap and seal adaptors (to BS EN : 1998 wall pipe) 150 to adapt bends and 45 junctions 150 to adapt couplers and 90 junctions (1) Seals and jointing instructions are attached to each socketed fitting. (2) To BS EN :

9 Design Data Electronic Copy have adequate resistance to the temperatures likely to be found in domestic sewage. 3 General The Polysewer fittings are for use as sewerage systems designed in accordance with BS EN to 4 for the conveyance, by combined or separate systems, of surface water and domestic sewage as is permitted to be discharged into public sewers by the Water Industry Act 1991, Chapter 50, and surface water and sewage as is permitted and defined by the sewerage (Scotland) Act 1968 and the Water and Sewerage Services (Northern Ireland) Order Strength 4.1 The fittings have adequate strength for use in situations when pipe to WIS : 2000 (Issue 1) is suitable. 4.2 The nominal short-term stiffness is not less than 8 knm The nominal 50-year stiffness is not less than 3 knm 2. 5 Performance of joints 5.1 The performance of joints will not be adversely affected by thermal expansion or contraction when correctly made. 5.2 Joints on the pipeline remain watertight under conditions of pipeline movement in excess of those expected to occur in normal good drainage practice. 6 Flow characteristics 6.1 The products will have the normal flow characteristics associated with PVC-U underground sewerage systems. 6.2 Full bore velocities are available from the Table for the Hydraulic Design of Pipes, Sewers and Channels, Volume 2, 7th Edition by H R Wallingford and D I H Barr. The values are based on the Colebrook-White equation. 9 Practicability of installation The products are installed easily under normal site conditions. 10 Rodding 10.1 Drains incorporating the product can be rodded easily using conventional flexible drain rods. Toothed root cutters, as used with some mechanical cleaning systems, could damage the fittings and should not be used The system has adequate resistance to water cleansing using pressure jetting equipment. It is recommended that low pressure, high volume systems are utilised in accordance with WIS : 2000 (Issue 1). 11 Durability In the opinion of the BBA, when used in the context of this Detail Sheet, no significant deterioration of the product will take place and installations will have a life in excess of 50 years. Installation 12 General Installation must be in accordance with the Polysewer Technical Brochure and, when appropriate, BS : 1980, BS EN to 4 : 1998 and the Water UK/WRc plc document Sewers for Adoption, July 2001, 5th edition. 13 Jointing procedure 13.1 The pipe is cut midway between the corrugations as shown in Figure 2. Figure 2 Joint details 7 Resistance to chemicals 7.1 The products are suitable for use where pipe to WIS : 2000 (Issue 1) and fittings to BS EN : 1998 are normally used. They have adequate resistance to the type and quantities of chemicals likely to be found in domestic sewage. 7.2 Details of the chemical resistance of PVC-U is given in CP : 1973 and for EPDM rubber in ISO 7620 : Resistance to elevated temperatures The products are for use where pipe to WIS : 2000 (Issue 1) and fittings to BS EN : 1998 are normally used and 3

10 13.2 Swarf is removed from the pipe end a chamfer is not required The pipe spigots and sockets are cleaned and the sealing ring is checked to ensure that it is correctly seated (not twisted) between the first and second corrugations of the pipe end The Certificate holder s lubricant is applied generously to the whole of the inside area of the socket and to the sealing ring, ensuring that it does not subsequently become contaminated with dirt The pipe is offered to the socket, the pipe aligned and pushed fully home Jointing to other materials must be carried out in accordance with Polysewer Design and Installation Guide The fittings must have adequate protection against damage from site traffic. Electronic Copy accordance with BS : 1980 and BS 8301 : For 150 mm pipes and fittings and where the as-dug material can be hand trimmed by shovel and is not puddled when walked upon, a 50 mm depth of bedding material may be used. In this case the material must be a nominal 10 mm, single-d aggregate with no sharp edges, ie pea gravel (see Figure 4) When the 150 mm pipes are to be laid on rock, compacted sand or gravel requiring mechanical means of trimming, or in very soft or wet ground, the bedding should be as detailed in section Figure 3 Pipes laid on trench bottom 14 Procedure for laying pipes On trench bottom in granular material (see Figure 3) Where the as-dug material is suitable (1) for use as bedding, the bottom of the trench may be trimmed to form the pipe bed. (1) Suitable material is defined as granular material in accordance with the recommendations of BS : 1980, Table Small depressions should be made to accommodate the pipe sockets or couplings. After the pipe has been laid these should be carefully filled to ensure that no voids remain under, or around, the socket When the formation is prepared, the pipes should be laid upon it true to line and level within the specified tolerances. Each pipe should be checked and any necessary adjustments to level made by raising or lowering the formation, ensuring that the pipes finally rest evenly on the adjusted formation throughout the length of the barrels. Adjustment should never be made by local packing Where the formation is low and does not provide continuous support, it should be brought up to the correct level by placing and compacting suitable material. pipe diameter Figure 4 trench bottom trimmed and loosened to form bed as-dug soil sidefill Note: As-dug soil, sidefill and backfill to be granular material to BS : 1980 (see section 14.1) backfill Pipes laid on 100 mm minimum granular bedding On granular beds (see Figures 3 and 4) 14.5 When the as-dug material is not suitable as a bedding, a layer of suitable granular material (see section 14.1) must be spread evenly on the trimmed trench bottom before the pipes are installed. The trench should be excavated to allow for a minimum thickness of 100 mm granular bedding under the barrels, in accordance with BS : 1980 (see Figure 2) The trench formation should be prepared, the bedding placed and the pipes laid in 4

11 Figure 5 15 Sidefill Pipes laid on 50 mm minimum pea gravel bedding In all cases the sidefill must be of the same specification as the bedding material and extend to the level of the crown of the pipe and be placed and compacted in accordance with BS : Backfill Backfill above the level of the crown of the pipe must be in accordance with BS : 1980 (see Figures 3, 4 and 5). Electronic Copy Technical Investigations 17 Tests Tests were carried out on the system to determine: combined temperature and external load to WIS No : 2000 (Issue 1), Appendix A leaktightness whilst under angular deflection and diametric distortion to WIS No : 2000 (Issue 1), and BS EN 1277 : 1996 ring flexibility to WIS No : 2000 (Issue 1) and BS EN 1446 : 1996 impact resistance to WIS No : 2000 (Issue 1) and BS EN 1411 : 1996 ring stiffness to ISO : 1998 resistance to internal puncture to WIS No : 2000 (Issue 1) resistance to internal pressure to WIS No : 2000 (Issue 1) ease of jointing dimensional accuracy. 18 Other investigations 18.1 An examination was made of data relating to: resistance to damage before installation resistance to damage from sharp aggregate practicability of installation chemical resistance design method flow capacities A user survey was carried out to evaluate the performance of the products in use The manufacturing process was examined, including the methods adopted for quality control, and details were obtained of the quality and composition of the materials used. 5

12 Bibliography BS 4660 : 2000 Thermoplastics ancillary fittings of nominal s 110 and 160 for below ground gravity drainage and sewerage BS : 1980 Plastics pipework (thermoplastics materials) Code of practice for the installation of unplasticized PVC pipework for gravity drains and sewers BS 8301 : 1985 Code of practice for building drainage BS EN : 1996 Elastomeric seals Material requirements for pipe joint seals used in water and drainage applications Vulcanized rubber BS EN : 1996 Drain and sewer systems outside buildings Generalities and definitions BS EN : 1997 Drain and sewer systems outside buildings Performance requirements BS EN : 1997 Drain and sewer systems outside buildings Planning BS EN : 1998 Drain and sewer systems outside buildings Hydraulic design and environmental considerations BS EN 1277 : 1996 Plastics piping systems Thermoplastics piping systems for buried nonpressure applications Test methods for leaktightness of elastomeric sealing ring type joints Electronic Copy BS EN : 1998 Plastics piping systems for non-pressure underground drainage and sewerage. Unplasticized poly(vinylchloride) (PVC-U) Specifications for pipes, fittings and the system BS EN 1411 : 1996 Plastics piping and ducting systems Thermoplastics pipes Determination of resistance to external blows by the staircase method BS EN 1446 : 1996 Plastics piping and ducting systems. Thermoplastics pipes Determination of ring flexibility CP : 1973 Code of practice for plastics pipework (thermoplastics material) General principles and choice of material ISO 7620 : 1986 Rubber materials Chemical resistance ISO : 1998 Thermoplastics fittings Determination of ring stiffness WIS : 2000 (Issue 1) Specification for thermoplastic structured wall pipes, joints and couplers with a smooth bore for gravity sewers for the range 150 to 900 inclusive On behalf of the British Board of Agrément Date of issue: 3rd May 2002 Chief Executive 6

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14 Electronic Copy British Board of Agrément P O Box No 195, Bucknalls Lane Garston, Watford, Herts WD25 9BA Fax: mail@bba.star.co.uk website: For technical or additional information, tel: For information about Agrément Certificate validity and scope, tel: Hotline: